Denpasar Sewerage and Its Contribution to MDG Achievement
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Transcript of Denpasar Sewerage and Its Contribution to MDG Achievement
1
SATUAN KERJA PENGEMBANGAN PENYEHATAN LINGKUNGAN PERMUKIMAN BALI
THIRD EAST ASIA MINISTRIAL CONFERENCE ON SANITATION AND HYGIENE (EASAN-3)
DENPASAR SEWERAGE AND ITS CONTRIBUTION TO
MDG ACHIEVEMENT INDONESIA
10 September 2012
MINISTRY OF PUBLIC WORKSDIRECTORATE GENERAL OF HUMAN SETTLEMENTSDIRECTORATE OF ENVIRONMENTAL SANITATION DEVELOPMENT
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Approach Concept of Urban Sanitation in Greater Denpasar
Off-Site SanitationDSDP Sewerage Service Area
Sewer NetworkCollection and Treatment
WWTP(Denpasar)
On-Site SanitationNon- Sewerage Service Area
Collection and Transportationof Septic Tank Sludge
Sludge Treatment Plant
(Tabanan & Gianyar)
SANIMAS
Dumping Site
Administrative division Area (km²)Population (2010 Census)
Population density (/km²)
Denpasar Municipality 124 788,445 6,400
Badung Regency 419 543,332 1,293
Gianyar Regency 368 470,380 1,300
Greater Denpasar (Built-Up)
911 1,802,157 1,979
Tabanan Regency 839 420,913 500
Greater Denpasar (SARBAGITA)
1,750 2,223,070 1,270
Target of Urban Sanitation:
1. Mitigation of Water Pollution:
River and groundwater as drinking water sources
Seawater for beach resorts
2. Improvement of sanitary condition at house-level
3. Mitigation of environmental pollution
* SANIMAS: Sanitasi oleh Masyarakat = Sanitation by Communities
3-Level Approach Concept
1992 93 94 95 96 97 98 99 2000 01 02 03 04 05 06 07 08 09 2010 11 12 13 14 15 16
Master Plan & Feasibility Study (JICA)
Loan Agreement (JBIC) DSDP-1 (Extension)
Detailed Design
ICB (Sewer, PS, IPAL)
LCB (HC, local Sewer)
L/A (JBIC) DSDP-2
Detailed Design DSDP-2
Construction DSDP-2
ICB (Main Sewer)
LCB (HC, local Sewer)
Formation of BLUPAL
Retribution Tariff
Formation of UPT-PAL ⇒ PPK BLUD
1992 93 94 95 96 97 98 99 2000 01 02 03 04 05 06 07 08 09 2010 11 12 13 14 15 16
History of DSDP
Construction DSDP-1
Sep-11
Jan-12
May-07 Operation
Asian CurrencyCrisis
Bomb Terror
Off-Site Sanitation - DSDP
DSDP-1 has overcome Problems:
Land Acquisition (WWTP, PS);Finance arrangement between central and local governments;Protest against WWTP;Objection to sewer construction in Kuta;Asian Currency Crisis (1997);Bomb Terror in Kuta (2002 & 2005)
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Phase 1
Phase 2
Phase 3
DSDP PROJECTDSDP PROJECT AREAAREA
Implementation Plan of Implementation Plan of DSDPDSDPProject Area Phase 1 Phase 2 Phase 3 Total
Denpasar 520 280 1,823 2,623
Sanur 330 160 112 602
Kuta 295 365 244 904
Total 1,145 805 2,179 4,129
unit: person
Served Population
Phase 1 Phase 2 Phase 3 Total
Denpasar 32,200 52,300 280,200 364,700
Sanur 10,200 9,300 8,100 27,600
Kuta 8,700 13,200 3,300 25,200
Total 51,100 74,800 291,600 417,500
85% of Total Population in the areaNote: Connection Ratio updated based on the latest door-to-door survey
No. of House Connection
Phase 1 Phase 2 Phase 3 Total
Denpasar 5,326 3,300 16,680 25,516
Sanur 1,821 880 1,600 4,301
Kuta 1,861 3,500 720 6,081
Total 9,008 7,680 19,210 35,898
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DSDP PROJECTDSDP PROJECT COMPONENT COMPONENTWWTP Treatment Method: Aerated Lagoon + Sedimentation Pond
Daily average flow 51,000 m3/dTotal Volume of Lagoon 95,078 m3Retention time in AL 1.9 daysNo. of Aerator (total) 21 nosMotor output 15 kW/unitTotal Output 315 kWUnit output 3.3 W/m3Effluent Standard (BOD) 50 mg/L
Effluent actual (BOD) 20 - 40 mg/L
Main Sewer (Phase 1 and Phase 2)Collection System Separate systemTotal Length 245 kmPumping Facility Transfer pump station – 2 nos. (Sanur and Kuta)
Wet Pit Pump Station – 16 nos. Pipe Material: RC pipe and PVC Pipe Construction method Open Cut 232.6 km (dia. 200 – 1200 mm) Jacking Method 12.4 km (Denpasar and Kuta)
dia. 800 – 1200 mm
Key Activities for Success of DSDP = Public Campaign during the Construction Work (DSDP-2)Objectives of Public Campaign: To maintain smooth construction for avoiding objection of public To encourage willingness-to-connect To ensure willingness-to-pay for tariff To develop users’ understanding for O&M aspects
Activity and Tools of Public Campaign Door-to-door survey and distribution of information by facilitators Public consultation meetings (PCM) with local communities Media tools (newspaper ad, radio clip, poster, booklet and pamphlet) Workshop and Press Conference Study Tour for students
Achievement
Component Achievement
Off-Site Sanitation DSDP
Upon completion of DSDP Phase 2 which is smoothly ongoing, served population will reach 126,000, or area coverage will be 47% of the entire Master Plan service area.
On-Site Sanitation (Septic Tank Sludge)
DSDP WWTP is accepting much more sludge than at the two treatment plants in Tabanan and Gianyar, although it is a temporary measure.
The total capacity of the existing sludge treatment plants can serve 40,000 – 60,000 PE.
On-Site Sanitation (SANIMAS)
12 SANIMAS units to serve 1,091 households (2003 - 2011) in Denpasar city, Tabanan and Gianyar Regencies
Remaining Challenges
Component Remaining Challenges
General •Human resources development in sanitary engineering sector both public and private.
•Study of appropriate technology for sewage and sludge treatment to suit Indonesia’s local conditions
Off-Site Sanitation (DSDP)
•Maximize house connections•Tariff Retribution •Sustainable O&M of the sewerage facilities•Implementation of DSDP Phase 3 following the completion of Phase 2 in 2015•Modification of WWTP process to accept more volume of septic tank sludge
Off-Site Sanitation (Expansion)
•Application of sewerage system to other urban core areas (i.e. Tj. Benoa in Nusa Dua and Ubud)
On-Site Sanitation (1)(Septic Tank Sludge)
•Development of standard process design for efficient Sludge Treatment Plants to increase treatment capacity substantially
•Construction of more Sludge Treatment Plants•Monitoring of private sludge dumping sites for compliance with environmental
standards •Control of illegal dumping of sludge collected by private operators
On-Site Sanitation (2)(SANIMAS)
•Smooth implementation with finance•Mutual cooperation with various players (local government, NGOs, donors,
community, etc.) •Maintenance of facility by community